K.C.S.E Physics Q & A - MODEL 1999PP2QN06
​a) Explain the following observations: ice cube float on water and solid benzene sinks in liquid benzene.
bi) You are provided with the following: An overflow can - A beaker -A spring balance A metal block -Water and - String Describe an experiment to verify Archimedes principle. ii) A block of wood weighing 2.0N is held under water by a string attached to the bottom of a container. The tension in the string is 0.5N. Determine the density of the wood. ci) Define half – life of a radioactive material. ii) Figure 6 shows a graph of the variation of the number of atoms of a certain radioactive material with time. Figure6: Determine the half – life of the material
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